Definitely a natural fiber. First realized it was an issue couple years back when we had bought 'high quality bamboo' sheet and duvet set. It's not due to the bamboo itself, but the 'forever chemicals' used to process it into a weavable thread.

Gf at the time would break out from the bamboo sheets no matter how many times she tried to wash them. This was 2-3 years ago when we first researched it heavily.

Here is the first site I came across while searching 'bamboo textiles processing.' https://www.ewg.org/news-insights/news/2022/01/new-tests-find-toxic-forever-chemicals-bedding-yoga-pants-and-other

I'm really unsure of that sites legitimacy, but there are plenty of ones that link to anecdotal and scientific studies. My apologies, but I am getting ready for work and don't have time to post more links for you.

i think its the way its processed is the problem, not the bamboo itself (?) unless maybe theyre watering it with shitty ass water